MERRA2 Data Lessons for next REANL: Difference between revisions

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* RapidScat will come in at some point. Initial dev was w/ QuikSCAT slot but no code changes. NESDIS (Sid's team) passed developments to use the OSCAT slot. If OSCAT is considered in the future, both instruments will likely share the same slot. From my end (wm), the largest development was the implementation of a thinning mesh similar to ASCAT for RapidScat. This is probably ideal for QuikSCAT in the future no matter. I do not know offhand what thinning, if any, OSCAT used. It may also be worth considering thinning for ERS instruments.

* Aircraft observations. Prior to 20130731/00z our reanalysis data uses a table incompatible with the new NRL aircraft quality control. There was also a problem in the way the height (derived from pressure) was calculated in the earlier obs that would be flagged by NRLQC. One more issue is that our data is being written with +/-3 hour window and the QC would benefit from having observations beyond these limits (just as Profiler and AMDAR windows are larger). For the next reanalysis the aircraft observations should be replaced, preferably processed with a recent version of PREPDATA so that TAMDAR observations get tail number IDs. (Even if we don't use them we may want to look at them.) Alternatively we could try to rewrite the data we have with corrected

ACARS heights, updated BUFR table, and possibly wider time windowing.

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 * RapidScat will come in at some point.  Initial dev was w/ QuikSCAT slot but no code changes.  NESDIS (Sid's team) passed developments to use the OSCAT slot.  If OSCAT is considered in the future, both instruments will likely share the same slot.  From my end (wm), the largest development was the implementation of a thinning mesh similar to ASCAT for RapidScat.  This is probably ideal for QuikSCAT in the future no matter.  I do not know offhand what thinning, if any, OSCAT used.  It may also be worth considering thinning for ERS instruments.
+* Aircraft observations.  Prior to 20130731/00z our reanalysis data uses a table incompatible with the new NRL aircraft quality control.  There was also a problem in the way the height (derived from pressure) was calculated in the earlier obs that would be flagged by NRLQC.  One more issue is that our data is being written with +/-3 hour window and the QC would benefit from having observations beyond these limits (just as Profiler and AMDAR windows are larger).  For the next reanalysis the aircraft observations should be replaced, preferably processed with a recent version of PREPDATA so that TAMDAR observations get tail number IDs. (Even if we don't use them we may want to look at them.)  Alternatively we could try to rewrite the data we have with corrected
+ACARS heights, updated BUFR table, and possibly wider time windowing.